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32. 1997 Economic Census





1185. Demonstrated Coal Reserves, by Type of Coal, and Method of Mining, by State

[In millions of short tons (495,666 represents 495,666,000,000). As of January 1. The demonstrated reserve base is the sum of coal in both measured and indicated resource categories of reliability. Measured resources of coal are estimates that have a high degree of geologic assurance from sample analyes and measurements from closely spaced and geological well known sample sites. Indicated resources are estimates based partly from sample and analyses and measurements and partly from reasonable geologic projections. For more information on the classification of coal resources and related terminology, see report cited below]

 
1995 1995 1997 1997 1999
Type of coal Method of mining Type of coal Method of mining Type of coal Method of mining
State Total Total addsum add sum Total
reserves Anthra- Bitu- Sub- Lig- Under Surface reserves Anthra- Bitu- Sub- Lig- Under Surface type method reserves Anthra- Bitu- Sub- Lig- Under Surface
cite minous bitu- nite ground cite minous bitu- nite ground cite minous bitu- nite ground
minous minous minous
 
    United States........................................................... 495,666 7,483 257,780 185,950 44,453 328,552 167,113 507,740 7,477 270,910 185,118 44,235 341,775 165,965
 
Alabama........................................................... 4,635 0 3,552 0 1,083 1,362 3,273 4,547 0 3,464 0 1,083 1,290 3,256
Alaska........................................................... 6,130 0 698 5,418 14 5,423 707 6,126 0 698 5,414 14 5,423 703
Arizona........................................................... 189 0 189 0 0 102 87 161 0 161 0 0 102 59
Arkansas........................................................... 417 104 288 0 25 273 145 417 104 288 0 25 273 144
Colorado........................................................... 16,844 26 8,777 3,852 4,190 12,049 4,795 16,756 26 8,711 3,830 4,190 11,979 4,777
Georgia........................................................... 4 0 4 0 0 2 2 4 0 4 0 0 2 2
Idaho........................................................... 4 0 4 0 0 4 0 4 0 4 0 0 4 0
Illinois........................................................... 89,956 0 89,956 0 0 73,781 16,175 105,069 0 105,069 0 0 88,461 16,608
Indiana........................................................... 9,991 0 9,991 0 0 8,873 1,118 9,917 0 9,917 0 0 8,860 1,057
Iowa........................................................... 2,190 0 2,190 0 0 1,733 457 2,190 0 2,190 0 0 1,733 457
Kansas........................................................... 976 0 976 0 0 0 976 975 0 975 0 0 0 975
 
Kentucky........................................................... 32,565 0 32,565 0 0 18,885 13,680 32,041 0 32,041 0 0 18,508 13,533
  Kentucky, Eastern........................................................... 12,485 0 12,485 0 0 2,525 9,960 12,086 0 12,086 0 0 2,247 9,839
  Kentucky, Western........................................................... 20,080 0 20,080 0 0 16,360 3,720 19,954 0 19,954 0 0 16,261 3,694
Louisiana........................................................... 471 0 0 0 471 0 471 463 0 0 0 463 0 463
Maryland........................................................... 731 0 731 0 0 649 82 717 0 717 0 0 637 80
Michigan........................................................... 128 0 128 0 0 123 5 128 0 128 0 0 123 5
Missouri........................................................... 5,996 0 5,996 0 0 1,479 4,517 5,994 0 5,994 0 0 1,479 4,515
Montana........................................................... 119,773 0 1,385 102,627 15,761 70,959 48,815 119,677 0 1,385 102,531 15,760 70,958 48,718
New Mexico........................................................... 12,547 2 3,741 8,804 0 6,205 6,341 12,483 2 3,706 8,774 0 6,204 6,279
North Carolina........................................................... 11 0 11 0 0 11 0 11 0 11 0 0 11 0
North Dakota........................................................... 9,470 0 0 0 9,470 0 9,470 9,395 0 0 0 9,395 0 9,395
Ohio........................................................... 23,754 0 23,754 0 0 17,847 5,907 23,664 0 23,664 0 0 17,789 5,875
 
Oklahoma........................................................... 1,580 0 1,580 0 0 1,237 342 1,575 0 1,575 0 0 1,237 338
Oregon........................................................... 18 0 0 18 0 15 3 18 0 0 18 0 15 3
Pennsylvania........................................................... 28,868 7,225 21,643 0 0 24,408 4,460 28,646 7,220 21,427 0 0 24,232 4,414
  Anthracite........................................................... 7,225 7,225 0 0 0 3,850 3,375 7,220 7,220 0 0 0 3,850 3,370
  Bituminous........................................................... 21,643 0 21,643 0 0 20,558 1,085 21,427 0 21,427 0 0 20,382 1,044
South Dakota........................................................... 366 0 0 0 366 0 366 366 0 0 0 366 0 366
Tennessee........................................................... 827 0 827 0 0 539 288 816 0 816 0 0 532 284
Texas........................................................... 13,065 0 0 0 13,065 0 13,065 12,931 0 0 0 12,931 0 12,931
Utah........................................................... 5,956 0 5,955 1 0 5,688 268 5,850 0 5,849 1 0 5,583 268
Virginia........................................................... 2,327 126 2,202 0 0 1,630 697 2,202 126 2,077 0 0 1,528 674
Washington........................................................... 1,401 0 304 1,089 8 1,332 69 1,390 0 304 1,078 8 1,332 57
West Virginia........................................................... 35,983 0 35,983 0 0 31,420 4,564 35,397 0 35,397 0 0 30,968 4,429
Wyoming........................................................... 68,496 0 4,354 64,141 0 42,525 25,971 67,815 0 4,343 63,472 0 42,516 25,299
 
Appalachian........................................................... 109,625 7,351 101,191 0 1,083 80,392 29,233 108,089 7,345 99,661 0 1,083 79,235 28,854
Interior........................................................... 144,848 104 131,182 0 13,562 103,859 40,989 159,611 104 146,088 0 13,419 118,425 41,186
Western........................................................... 241,193 28 25,406 185,950 29,809 144,302 96,891 240,040 28 25,161 185,118 29,733 144,115 95,925
 
East of the Mississippi River........................................................... 229,779 7,351 221,346 0 1,083 179,529 50,250 243,156 7,345 234,728 0 1,083 192,939 50,217
West of the Mississippi River........................................................... 265,886 132 36,434 185,950 43,370 149,023 116,863 264,584 132 36,182 185,118 43,152 148,836 115,747


Source: U.S. Energy Information Administration, U.S. Coal Reserves: A Review and Update, August 1996; and U.S. Coal Reserves: 1997 Update, February 1999.

http://www.eia.doe.gov/fuelcoal.html

* Definitions

Coal: A black or brownish- black solid, combustible substance formed by the partial decomposition of vegetable matter without ac- cess to air. The rank of coal, which includes anthracite, bituminous coal, subbituminous coal, and lignite, is based on fixed carbon, vola- tile matter, and heating value. Coal rank indicates the progressive alteration, or coalification, from lignite to anthracite. Lignite contains approximately 9 to 17 million Btu per ton. The heat contents of sub- bituminous and bituminous coal range from 16 to 24 million Btu per ton, and from 19 to 30 million Btu per ton, respectively. Anthracite contains approximately 22 to 28 million Btu per ton.

Coal Coke: A hard, porous product made from baking bituminous coal in ovens at temperatures as high as 2,000 F. It is used both as a fuel and as a reducing agent in smelting iron ore in a blast furnace. used to classify an establishment as commercial are 50 through 87, 89, Anthracite: A hard, black, lustrous coal containing a high percentage of fixed carbon and a low percentage of volatile matter. Often referred to as hard coal. It conforms to ASTM Specification D388- 84 for an- thracite, meta- anthracite, and semianthracite.

Bituminous Coal: A dense black coal, often with well- defined bands of bright and dull material, with a moisture content usually less than 20 percent. Often referred to as soft coal. It is the most common coal and is used primarily for generating electricity, making coke, and space heating. It conforms to ASTM Specification D388- 84 for bituminous coal. In this report, bituminous coal includes subbituminous coal.

Lignite: A brownish- black coal of low rank with a high content of moisture and volatile matter. Often referred to as brown coal. It is used almost exclusively for electric power generation. It conforms to ASTM Specification D388- 84 for lignite.

Demonstrated Reserve Base (coal): A collective term for the sum of coal in both measured and indicated resource categories of reliability, representing 100 percent of the in- place coal in those categories as of a certain date. Includes beds of bituminous coal and anthracite 28 or more inches thick and beds of subbituminous coal 60 or more inches thick that can occur at depths of up to 1,000 feet. Includes beds of lig- nite 60 or more inches thick that can be surface mined. Includes also thinner and/ or deeper beds that currently are being mined or for which there is evidence that they could be mined commercially at a given time. Represents that portion of the identified coal resource from which reserves are calculated. *



https://allcountries.org/uscensus/1185_demonstrated_coal_reserves_by_type_of.html

These tables are based on figures supplied by the United States Census Bureau, U.S. Department of Commerce and are subject to revision by the Census Bureau.

Copyright © 2006 Photius Coutsoukis and Information Technology Associates, all rights reserved.